gotosocial/internal/federation/federatingdb/announce.go

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package federatingdb
import (
"context"
"encoding/json"
"fmt"
"github.com/go-fed/activity/streams"
"github.com/go-fed/activity/streams/vocab"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
func (f *federatingDB) Announce(ctx context.Context, announce vocab.ActivityStreamsAnnounce) error {
l := f.log.WithFields(
logrus.Fields{
"func": "Announce",
},
)
m, err := streams.Serialize(announce)
if err != nil {
return err
}
b, err := json.Marshal(m)
if err != nil {
return err
}
l.Debugf("received ANNOUNCE %s", string(b))
targetAcctI := ctx.Value(util.APAccount)
if targetAcctI == nil {
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// If the target account wasn't set on the context, that means this request didn't pass through the
// API, but came from inside GtS as the result of another activity on this instance. That being so,
// we can safely just ignore this activity, since we know we've already processed it elsewhere.
return nil
}
targetAcct, ok := targetAcctI.(*gtsmodel.Account)
if !ok {
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l.Error("ANNOUNCE: target account was set on context but couldn't be parsed")
return nil
}
fromFederatorChanI := ctx.Value(util.APFromFederatorChanKey)
if fromFederatorChanI == nil {
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l.Error("ANNOUNCE: from federator channel wasn't set on context")
return nil
}
fromFederatorChan, ok := fromFederatorChanI.(chan gtsmodel.FromFederator)
if !ok {
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l.Error("ANNOUNCE: from federator channel was set on context but couldn't be parsed")
return nil
}
boost, isNew, err := f.typeConverter.ASAnnounceToStatus(announce)
if err != nil {
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return fmt.Errorf("ANNOUNCE: error converting announce to boost: %s", err)
}
if !isNew {
// nothing to do here if this isn't a new announce
return nil
}
// it's a new announce so pass it back to the processor async for dereferencing etc
fromFederatorChan <- gtsmodel.FromFederator{
APObjectType: gtsmodel.ActivityStreamsAnnounce,
APActivityType: gtsmodel.ActivityStreamsCreate,
GTSModel: boost,
ReceivingAccount: targetAcct,
}
return nil
}